Yes - The rainbow lecture is so great! All of you have looked at rainbows, but very few of you have ever seen one! https://www.youtube.com/watch?v=vXZ9K_1rJww

Yes - The rainbow lecture is so great! All of you have looked at rainbows, but very few of you have ever seen one! https://www.youtube.com/watch?v=vXZ9K_1rJww https://www.youtube.com/watch?v=vXZ9K_1rJww